What is Cialis®?
Cialis® is Eli Lilly's brand-name tadalafil, an FDA-approved PDE5 inhibitor for erectile dysfunction — available as-needed or as a low daily dose.
Brand-Name ED Treatment
Cialis® — The Weekend Pill for Lasting Confidence
Brand-name tadalafil, by Eli Lilly
Up to 36 hours from a single dose. Cialis® is Eli Lilly's brand-name tadalafil — an FDA-approved PDE5 inhibitor available as-needed or as a low daily dose.
- Up to 36 hours of effectiveness — the longest-lasting brand-name ED medication
- Available as-needed or as a daily low-dose for complete spontaneity
- Manufactured by Eli Lilly, trusted globally for decades
- Prescribed discreetly online with confidential delivery
Prescription required. A licensed provider determines whether Cialis® is appropriate for you. Individual response varies.
Cialis® · Brand-name tadalafil
One dose, a weekend-long window — no planning around a pill.
- Form
- Oral tablet
- Active ingredient
- Tadalafil
- Strengths
- 2.5mg · 5mg · 10mg · 20mg
- Timing
- As needed or daily
- Status
- FDA-approved brand-name
What patients value
Less watching the clock. More being present.
A single as-needed dose of Cialis® can remain effective for up to 36 hours, and the daily low-dose option removes timing from the equation entirely. Sexual stimulation is still required, and individual response varies.
Private Care
Private care, step by step.
Cialis® is prescription-only. A licensed provider decides whether it's appropriate for you.
- 01Assessment
Private assessment
Answer confidential questions about your health and symptoms in about 5 minutes.
- 02Clinical
Provider review
A licensed provider evaluates whether Cialis® is appropriate and picks as-needed or daily dosing.
- 03Treatment
Discreet delivery
Medication is shipped directly to your door through our pharmacy partners in plain, unmarked packaging.
- 04Support
Ongoing support
Message your provider anytime to adjust dose or switch dosing style.
Free 5-minute assessment · Licensed provider review · No obligation
Cialis® Overview
Trusted brand-name tadalafil, explained clearly.
What the medication is, how it works, and why the timing sets it apart.
How does it work?
It blocks the PDE5 enzyme so cGMP accumulates in erectile tissue, smooth muscle relaxes, and blood flow increases when you are sexually aroused.
Brand or generic?
Generic tadalafil is bioequivalent and 80-90% less expensive. Patients choose brand-name Cialis® for trust in the Eli Lilly name or preference — the clinical outcome is the same.
The Original Cialis® Experience
How Cialis® supports your natural response.
The longest-window brand-name PDE5 option, in four steps.
Four steps, one pathway
Like Viagra®, Cialis® works with sexual stimulation — not on its own.
Take the dose your provider prescribed. As-needed doses are taken about 30 minutes before activity; daily doses are taken at the same time each day.
PDE5 is inhibited. Cialis® blocks the PDE5 enzyme in the smooth muscle of erectile tissue.
cGMP activity is supported. With PDE5 suppressed, cGMP accumulates and blood vessels relax.
Blood flow responds to stimulation. During sexual arousal, blood flows into erectile tissue and an erection becomes easier to achieve and maintain.
Tadalafil is metabolized slowly and remains at therapeutic levels for up to 36 hours from a single as-needed dose. Food has minimal impact on absorption.
Cialis® vs. Generic Tadalafil
Same active ingredient. Two ways to fill it.
Cialis® and generic tadalafil are pharmacologically identical; the difference is branding and price.
Cialis® (brand)
2.5mg · 5mg · 10mg · 20mg
The brand-name reference product from Eli Lilly, which pioneered both the 36-hour window and the daily low-dose approach. Brand-name pricing and packaging.
Reference productTadalafil (generic)
2.5mg · 5mg · 10mg · 20mg
FDA-approved generic containing tadalafil, bioequivalent to Cialis® and typically 80-90% less expensive.
Cost-consciousCialis® vs. Viagra®
Different active ingredients. Very different timing.
Neither is universally better — the right choice depends on how you plan to use it.
Cialis® (tadalafil)
Up to 36 hours
Works within about 30 minutes and offers a daily low-dose option. Food has minimal impact. Better for extended spontaneity.
Longer windowViagra® (sildenafil)
About 4-6 hours
Works in 30-60 minutes within a defined window. A high-fat meal may delay onset. Better for a planned encounter.
Defined windowEverything You Need to Know
Cialis®, explained.
Dosing, safety, timing, and practical answers in one place.
Different, not better. Cialis® offers a longer duration and daily dosing option; Viagra® has a faster onset within a defined window. Which is better for you depends on how you plan to use it.
It does not mean a 36-hour erection. It means a 36-hour window during which achieving an erection is easier when sexually aroused. Erections still occur only with stimulation and subside naturally.
Same active ingredient, same clinical effect. Some patients prefer brand-name Cialis® for trust in Eli Lilly's manufacturing or familiarity with the name. Generic tadalafil is 80-90% less expensive. Most patients choose the generic; brand-name is a personal preference, not a clinical difference.
Daily low-dose tadalafil (2.5-5 mg) has been studied in long-term use and is FDA-approved for daily administration. Your provider monitors you on an ongoing basis to confirm the medication continues to be appropriate and well tolerated. Millions of men take it daily without issue when prescribed correctly.
No. Never combine PDE5 inhibitors. Taking two at once dramatically increases the risk of dangerously low blood pressure and other side effects with no additional benefit. Your provider prescribes one or the other based on your needs, and can switch you between them safely if a change is warranted.
Cialis® is not FDA-approved for premature ejaculation, but some clinical studies suggest tadalafil may have a modest effect on ejaculatory control in men who also have erectile dysfunction. If PE is your primary concern, discuss dedicated PE treatments with your provider — PE-specific therapies are more directly effective.
Yes. Eli Lilly developed and continues to manufacture brand-name Cialis®.
Both approaches are available, and your provider prescribes one — never both at the same time.
As-needed dosing: take 10-20 mg approximately 30 minutes before planned sexual activity. Do not take more than one dose in 36 hours. Effects last up to 36 hours.
Daily low-dose: take 2.5-5 mg at roughly the same time every day. After a few days of steady dosing, therapeutic levels are continuous and no timing is needed before intimacy.
Food has minimal impact on tadalafil absorption, so Cialis® can be taken with or without a meal without meaningfully changing onset or effect. You can switch between approaches with your provider, but you should never combine both strategies simultaneously.
Do not take Cialis® with nitrate medications or riociguat. Combining nitrates with PDE5 inhibitors such as Cialis® can cause a dangerous drop in blood pressure.
Tell your provider about heart conditions, blood pressure medications, liver or kidney disease, alpha-blockers, any history of priapism, and all current prescriptions during your assessment. Never take Cialis® alongside another PDE5 inhibitor, and do not combine daily and as-needed dosing.
A provider should review your cardiovascular health, blood pressure, and current medications before prescribing. Sexual activity carries cardiac considerations for some patients, which is part of the clinical review.
Common side effects include headache, back pain, muscle aches, flushing, nasal congestion, and upset stomach. Seek emergency care for an erection lasting more than 4 hours. Sudden vision or hearing loss also requires prompt medical attention.
Moderate alcohol is generally acceptable. Heavy drinking reduces effectiveness and increases the risk of dizziness and low blood pressure.
Cialis® supports the normal erectile response to arousal; sexual stimulation is still required, and it does not automatically cause an erection.
Other Men's Sexual Health Options
Explore the Graceland treatment lineup.
Cialis® is one option. Treatment selection should reflect your medical history, previous response, timing preferences, and goals.
Generic Cialis®FDA-approved
Tadalafil
The same active ingredient at a significantly lower cost.
Learn More
Brand NameFDA-approved
Viagra®
Brand-name sildenafil for a faster onset within a defined window.
Learn More
Compounded ED CareCompounded
Endura™
Sildenafil + tadalafil ODT with a performance-centered profile.
Compounded medications are not FDA-approved and have not been evaluated by the FDA for safety or efficacy.
Learn More
Compounded ED & Intimacy CareCompounded
PrimeRise™
Tadalafil + oxytocin ODT for confidence and connection.
Compounded medications are not FDA-approved and have not been evaluated by the FDA for safety or efficacy.
Learn MoreCompounded medications are not FDA-approved and have not been evaluated by the FDA for safety or efficacy. Options marked “Compounded” above are prepared by a licensed compounding pharmacy for a specific patient and are not equivalent in regulatory status to FDA-approved products.
Personalized Sexual Health Care
36 Hours. Zero Planning. Total Confidence.
A longer treatment window, daily-or-as-needed flexibility, and provider-guided care — start with a private assessment to find out if Cialis® is right for you.
Prescription required. Cialis® is FDA-approved for erectile dysfunction. Do not take with nitrate medications. Individual response varies.
References
Cialis® is a registered trademark of Eli Lilly and Company. Graceland Wellness is not affiliated with or endorsed by Eli Lilly.